> ## Documentation Index
> Fetch the complete documentation index at: https://help.dingtalk.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Dropdown Multiselect

> Describes a component built for multiselect scenarios, covering the Select all and Search features, and explains how to associate other Tables.

## 1. Use Cases

Use this component to select multiple options from a dropdown list. It suits scenarios that require multiselect, and also supports use cases such as [**associating other Tables**](/yida/form/tg64d5) and [**data linkage**](/yida/form/arpur0).

If the options come from another Table and, after selection, related information must be populated into the form (a data association scenario)—for example, in a contract management scenario where creating a contract or order requires linking an associated form component to a customer Table to pull in customer details—use the [**associated form**](/yida/form/agd540) component instead.

<Note>
  For component attributes, usage, and examples, see the [**component interface reference**](/open/yida/components/interface).
</Note>

## 2. Basic Features

### 2.1 Select All

Selecting each option one by one is tedious. Use the Select all feature to select every option at once.

Select all

### 2.2 Searchable

Search is supported for the options. When the dropdown contains many options, use Search to quickly locate the content you need.

Searchable